<h1>点击看看</h1>

<div class="card">
    <div class="card-box" :class="{ 'start': active_key >= 0 }">
        <div class="card-box-item" @click="itemClick(key)" v-for="item, key in card"
            :key="'card-box-item' + item.container.count" :class="{ 'card-box-item-active': key == active_key }">
            <div class="card-box-item-container">
                <div class="card-box-item-containerInner">
                    <div class="card-box-item-banner"><img :src="item.background" alt=""></div>
                    <div class="card-box-item-content">
                        {{ item.container.count }}
                        <template v-if="key == 0">
                            <demo4></demo4>
                        </template>
                    </div>
                    <span class="card-box-item-close">
                        <span @click.stop="close"></span>
                    </span>
                </div>
            </div>
            <dir class="card-box-item-hover">
                <div class="card-box-item-hover-light">{{ item.container.count }}</div>
            </dir>
        </div>
    </div>
</div>